\(TE_{J\rightarrow I}\)  measures the extend to which time series \(J\)  influences time series \(I\) . The TE is asymmetric under the exchange of \(i_t\)  and \(j_t\) , and provides information regarding the direction of interaction between the two time series. With respect to mutual information, the TE can be interpreted as being equivalent to the conditional mutual information [1]}.
